I would never call anyone a liar, but I can't understand why Eusebius claimed that Christ wrote "The Legend of Abgar", or the portrait of Christ called "The Holy Face of Edessa", which he knew that Hannan, the archivist at Edessa and the painter to King Abgar had painted the picture, still he allowed it to be claimed that Christ painted it him self, and it became an object of general veneration.
Either your history is wrong, or he had a completely different set of standards then we do today.
In regards to Peter being in Rome he cited credible sources and it has also been verified by the writings of the Church fathers. You would have to believe all of them are liars to claim Peter was never in Rome.
It's also intertesting to note who first made this claim and when they made it. I'm hoping Havoc will answer me but he has a habit of dodging direct questions.